Figure 2From: Increased permeability-oedema and atelectasis in pulmonary dysfunction after trauma and surgery: a prospective cohort studyRelation between number of red cell concentrates administered and the pulmonary leak index (PLI, × 10-3.min-1) in the patient groups: rs = 0.69, P < 0.001. The upper limit of normal PLI is 14.1 ×10-3.min-1.Back to article page